[FIX] mvc/View.js: Don't override OwnerComponent with ExtensionComponent
[FIX] mvc/View.js: Don't override OwnerComponent with ExtensionComponent

BCP: 2180257449
Change-Id: I5399e85295f76d932d8c169c999d0f22c775592a

SAP/openui5,SAP/openui5,SAP/openui5,SAP/openui5